- Robert Hardy
- Â Winston Churchill 8 episodes, 1981
- Siân Phillips
- Â Clementine Churchill 8 episodes, 1981
- Nigel Havers
- Â Randolph Churchill 8 episodes, 1981
- Tim Pigott-Smith
- Â Brendan Bracken 8 episodes, 1981
- Peter Barkworth
- Â Stanley Baldwin 7 episodes, 1981
- Edward Woodward
- Â Sir Samuel Hoare 7 episodes, 1981
- Eric Porter
- Â Neville Chamberlain 7 episodes, 1981
- Paul McDowell
- Â Butler at Chartwell 7 episodes, 1981
- David Swift
- Â Professor Lindemann 6 episodes, 1981
- Sherrie Hewson
- Â Mrs. Pearman 5 episodes, 1981
- Derek Ensor
- Â Speaker of the House 5 episodes, 1981
- Robert James
- Â Ramsay Macdonald 4 episodes, 1981
- Marcella Markham
- Â Nancy Astor 4 episodes, 1981
- Chloe Salaman
- Â Sarah Churchill 4 episodes, 1981
- Tony Mathews
- Â Anthony Eden 3 episodes, 1981
- Katharine Levy
- Â Mary Churchill 3 episodes, 1981
- David Quilter
- Â Wing-Commander Torr Anderson 3 episodes, 1981
- Paul Freeman
- Â Ralph Wigram 3 episodes, 1981
- Ian Collier
- Â Harold Macmillan 3 episodes, 1981
- Walter Gotell
- Â Lord Swinton 2 episodes, 1981
- Geoffrey Toone
- Â Sir Louis Kershaw 2 episodes, 1981
- John Woodnutt
- Â Harold Robinson 2 episodes, 1981
- Tamsin Murray-Leach
- Â Mary Churchill / ... 2 episodes, 1981
- Peter Vaughan
- Â Sir Thomas Inskip 2 episodes, 1981
- David Markham
- Â Duke of Marlborough 2 episodes, 1981
- Clive Swift
- Â Sir Horace Wilson 2 episodes, 1981
- Moray Watson
- Â Major Desmond Morton 2 episodes, 1981
- Diane Fletcher
- Â Ava Wigram 2 episodes, 1981
- Richard Murdoch
- Â Lord Halifax 2 episodes, 1981
- Phil Brown
- Â Lord Beaverbrook 2 episodes, 1981
- Malcolm Mudie
- Â Secretary at No. 10 2 episodes, 1981
- Jennifer Hilary
- Â 'Goonie' 1 episode, 1981
- Frank Middlemass
- Â Lord Derby 1 episode, 1981
- Derek Smith
- Â Brigadier Pakenham-Walsh 1 episode, 1981
- Lynda La Plante
- Â Mrs. Pakenham-Walsh 1 episode, 1981
- Roger Bizley
- Â 'Putzi' Hanfstaengel 1 episode, 1981
- Günter Meisner
- Â Adolf Hitler 1 episode, 1981
- Margaret Heald
- Â Clinic Receptionist 1 episode, 1981
- Terence Rigby
- Â Thomas Barlow 1 episode, 1981
- John Jardine
- Â Harold Rodier 1 episode, 1981
- Sheila Brennan
- Â Mrs. Barlow 1 episode, 1981
- Llewellyn Rees
- Â Lord Salisbury 1 episode, 1981
- Edward Jewesbury
- Â Chairman of India Committee / ... 1 episode, 1981
- John Hart Dyke
- Â Col. Headlam M.P. 1 episode, 1981
- Norman Jones
- Â Clement Attlee 1 episode, 1981
- Don McKillop
- Â Terence O'Connor 1 episode, 1981
- Osmund Bullock
- Â Colin Thorton-Kelmsley 1 episode, 1981
- Simon Dutton
- Â William Deakin 1 episode, 1981
- Geoffrey Chater
- Â Lord Hailsham 1 episode, 1981
- Stephen Elliott
- Â William Randolph Hearst 1 episode, 1981
- Stratford Johns
- Â Lord Rothermere 1 episode, 1981
- Christopher Benjamin
- Â Air Ministry Official 1 episode, 1981
- Merrie Lynn Ross
- Â Marion Davies 1 episode, 1981
- Norman Bird
- Â Sir Maurice Hanley 1 episode, 1981
- Margaret Courtenay
- Â Maxine Elliott 1 episode, 1981
- Stephen MacKenna
- Â Reporter 1 episode, 1981
- Warren Stanhope
- Â The Director 1 episode, 1981
- Roy Macready
- Â Albert - Beaverbrook's Butler 1 episode, 1981
- Rodd Wolff
- Â The Cowboy 1 episode, 1981
- Sam Wanamaker
- Â Bernard Baruch 1 episode, 1981
- Brian Miller
- Â Postman 1 episode, 1981
- James Cossins
- Â Lord Lothian 1 episode, 1981
- Matt Zimmerman
- Â 1st U.S. Businessman 1 episode, 1981
- Patricia Hodge
- Â Lady Londonderry 1 episode, 1981
- David Calder
- Â John Morris, M.P. 1 episode, 1981
- Jeremy Child
- Â Wing Commander 1 episode, 1981
- Jerry Harte
- Â 2nd U.S. Businessman 1 episode, 1981
- Stephen Chaundy
- Â Schoolboy 1 episode, 1981
- David Langton
- Â Lord Londonderry 1 episode, 1981
- James Berwick
- Â Van Antwerp 1 episode, 1981
- David Constant
- Â Schoolboy 1 episode, 1981
- Nigel Stock
- Â Admiral Domvile 1 episode, 1981
- Tristan Gemmill
- Â Schoolboy 1 episode, 1981
- Frederick Jaeger
- Â Von Ribbentrop 1 episode, 1981
- Guy Deghy
- Â King George V 1 episode, 1981
- Allister Bain
- Â Maxine Elliott's Butler 1 episode, 1981
- Richard Marner
- Â Von Kleist 1 episode, 1981
- Preston Lockwood
- Â Austen Chamberlain 1 episode, 1981
- Stewart Preston
- Â Grant 1 episode, 1981
- Garry Stewart
- Â Angus 1 episode, 1981
- Andrew Bicknell
- Â Young Man at Blenheim 1 episode, 1981
- Clare Byam-Shaw
- Â Young Woman at Blenheim 1 episode, 1981
- Peter Forbes-Robertson
- Â Vicar 1 episode, 1981
- Aileen Lewis
- Â Opposition MP / ... (uncredited) 3 episodes, 1981
- Guy Standeven
- Â Member of Parliament / ... (uncredited) 2 episodes, 1981
- Juba Kennerley
- Â Member of Parliament (uncredited) 2 episodes, 1981
- Gerry Judge
- Â Member of Parliament (uncredited) 2 episodes, 1981
- Hyma Beckley
- Â Member of Parliament / ... (uncredited) 2 episodes, 1981
- Lewis Alexander
- Â Member of Parliament (uncredited) 1 episode, 1981
- Derek Lyons
- Â German Soldier (uncredited) 1 episode, 1981
- Walter Henry
- Â Munich Waiter (uncredited) 1 episode, 1981
- Reg Thomason
- Â Conservative Grandee in Stanley Baldwin's Office (uncredited) 1 episode, 1981
- Roy Beck
- Â Stanley Baldwin's Private Secretary (uncredited) 1 episode, 1981
- Harry Van Engel
- Â Member of Parliament (uncredited) 1 episode, 1981
